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2.8 Command Processing Exceptions
C141-C013 121
Table 2.10 Reset processing during write
Type of command Halting process of command execution
WRITE
WRITE EXTENDED
WRITE AND VERIFY
SEND DIAGNOSTIC (Write/Read Test)
WRITE LONG
WRITE SAME
Data blocks which are currently being written are
processed normally, including the ECC portion, and
execution of the command is terminated at the point
when that processing is completed. Not all the data
transferred from the INIT to the HDD will
necessarily be written to the disk media.
FORMAT UNIT At the point when processing of the data block that is
currently being written (initialized) is completed,
execution of the command is halted. Since the
formatting results cannot be guaranteed for the entire
disk surface, it is necessary for the INIT to reissue the
command.
REASSIGN BLOCKS At the point when processing of alternate blocks
which are currently being assigned is completed,
execution of the command is halted. Not all the
alternate blocks specified for reassignment
processing by the INIT will necessarily have been
processed.
MODE SELECT
MODE SELECT EXTENDED
LOG SENSE (Specifying parameter
save)
If a parameter save operation has already started,
that command is executed until it is completed.
However, since the INIT cannot judge whether the
parameters have been saved or not, it is necessary
for the INIT to confirm the status by the MODE
SENSE command or the LOG SENSE command, or
reissue the command.
SYNCHRONIZE CACHE Data blocks which are currently being written are
processed normally, including the ECC portion and
the command is halted at the point when that
processing is completed. Not all the data which is
the write object will necessarily be written to the
disk media.